Cassin's Finch adult male's red coloration is concentrated on the crown, with back, breast, and flanks pale and pinkish, and finely streaked undertail-coverts and flanks. In females and juvenile males, breast and flanks are more cleanly white and more finely streaked. Brown ear-patch contrasts less distinctly with pale lines above and below eye in female and immature male Cassin's Finch than in Purple Finch.

References cited in Species Profile

• Cornell Lab of Ornithology. 2015. Cassin's Finch. All About Birds.
• Gabrielson, I. N. and S. G. Jewett. 1940. Birds of Oregon. Oregon State College, Corvallis.
• Grinnell, J. 1908. The biota of the San Bernardino mountains. Univ. Calif. Publ. Zool., vol. 5.
• Hahn, Thomas Peter. 1996. Cassin's Finch (Haemorhous cassinii), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online: http://bna.birds.cornell.edu/bna/species/240
• Kaufman, K. 1990. A field guide to advanced birding. Houghton Mifflin Co., Boston, MA.
• Mewaldt, L. R. and J. R. King. 1985. Breeding site faithfulness, reproductive biology, and adult survivorship in an isolated population of Cassin's Finches. Condor 87:494-510.
• Morrison, M. L., L. S. Hall, J. J. Keane, A. J. Kuenzi, and J. Verner. 1993. Distribution and abundance of birds in the White Mountains of California. Great Basin Nat. 53:246-258.
• Orr, R. T. 1968. Cassin's Finch. Pages 280-289 in Life histories of North American cardinals, grosbeaks, buntings, towhees, finches, sparrows, and allies, pt. 1. (Austin, Jr., O. L., Ed.) U.S. Natl. Mus. Bull. 237.
• Samson, F. B. 1976. Territory, breeding density, and fall departure in Cassin's Finch.Auk 93:477-497.
• Samson, F. B. 1977. Social dominance in winter flocks of Cassin's Finch. Wilson Bull. 89:57-66.
• Taylor, W. P. 1912. Field notes on amphibians, reptiles and birds of northern Humboldt County, Nevada, with a discussion of some of the faunal features of the region. Univ. Calif. Publ. Zool. 7:319-436.
• Van Rossem, A. J. 1936. Birds of the Charleston Mountains, Nevada. Pac. Coast Avifauna 24.